SkDocument: turn off SK_SUPPORT_LEGACY_DOCUMENT_API

src/pdf/SkPDFMetadata.cpp

Index: src/pdf/SkPDFMetadata.cpp
diff --git a/src/pdf/SkPDFMetadata.cpp b/src/pdf/SkPDFMetadata.cpp
index 46fe461be5266cae528b82b02ff4534a29b47ce0..42068843bf439b0cf4941db060c028f14b327a58 100644
--- a/src/pdf/SkPDFMetadata.cpp
+++ b/src/pdf/SkPDFMetadata.cpp
@@ -43,19 +43,6 @@ static const struct {
 };
 }  // namespace
 
-#ifdef SK_SUPPORT_LEGACY_DOCUMENT_API
-void SkPDFMetadata::SetMetadataByKey(const SkString& key,
-                                     const SkString& value,
-                                     SkDocument::PDFMetadata* metadata) {
-    for (const auto keyValuePtr : gMetadataKeys) {
-        if (key.equals(keyValuePtr.key)) {
-            metadata->*(keyValuePtr.valuePtr) = value;
-        }
-    }
-}
-
-#endif
-
 sk_sp<SkPDFObject> SkPDFMetadata::MakeDocumentInformationDict(
         const SkDocument::PDFMetadata& metadata) {
     auto dict = sk_make_sp<SkPDFDict>();